1 files changed, 16 insertions, 18 deletions

diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
index f2684d2d6851..afaba94d1d1c 100644
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -49,7 +49,7 @@ int fbtft_write_buf_dc(struct fbtft_par *par, void *buf, size_t len, int dc)
 EXPORT_SYMBOL(fbtft_write_buf_dc);
 
 void fbtft_dbg_hex(const struct device *dev, int groupsize,
-		   void *buf, size_t len, const char *fmt, ...)
+		   const void *buf, size_t len, const char *fmt, ...)
 {
 	va_list args;
 	static char textbuf[512];
@@ -137,8 +137,7 @@ static int fbtft_backlight_update_status(struct backlight_device *bd)
 		      "%s: polarity=%d, power=%d, fb_blank=%d\n",
 		      __func__, polarity, bd->props.power, bd->props.fb_blank);
 
-	if ((bd->props.power == FB_BLANK_UNBLANK) &&
-	    (bd->props.fb_blank == FB_BLANK_UNBLANK))
+	if (!backlight_is_blank(bd))
 		gpiod_set_value(par->gpio.led[0], polarity);
 	else
 		gpiod_set_value(par->gpio.led[0], !polarity);
@@ -322,12 +321,11 @@ static void fbtft_mkdirty(struct fb_info *info, int y, int height)
 	schedule_delayed_work(&info->deferred_work, fbdefio->delay);
 }
 
-static void fbtft_deferred_io(struct fb_info *info, struct list_head *pagelist)
+static void fbtft_deferred_io(struct fb_info *info, struct list_head *pagereflist)
 {
 	struct fbtft_par *par = info->par;
 	unsigned int dirty_lines_start, dirty_lines_end;
-	struct page *page;
-	unsigned long index;
+	struct fb_deferred_io_pageref *pageref;
 	unsigned int y_low = 0, y_high = 0;
 	int count = 0;
 
@@ -340,14 +338,13 @@ static void fbtft_deferred_io(struct fb_info *info, struct list_head *pagelist)
 	spin_unlock(&par->dirty_lock);
 
 	/* Mark display lines as dirty */
-	list_for_each_entry(page, pagelist, lru) {
+	list_for_each_entry(pageref, pagereflist, list) {
 		count++;
-		index = page->index << PAGE_SHIFT;
-		y_low = index / info->fix.line_length;
-		y_high = (index + PAGE_SIZE - 1) / info->fix.line_length;
+		y_low = pageref->offset / info->fix.line_length;
+		y_high = (pageref->offset + PAGE_SIZE - 1) / info->fix.line_length;
 		dev_dbg(info->device,
 			"page->index=%lu y_low=%d y_high=%d\n",
-			page->index, y_low, y_high);
+			pageref->page->index, y_low, y_high);
 		if (y_high > info->var.yres - 1)
 			y_high = info->var.yres - 1;
 		if (y_low < dirty_lines_start)
@@ -652,10 +649,11 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
 	fbops->fb_imageblit =      fbtft_fb_imageblit;
 	fbops->fb_setcolreg =      fbtft_fb_setcolreg;
 	fbops->fb_blank     =      fbtft_fb_blank;
+	fbops->fb_mmap      =      fb_deferred_io_mmap;
 
-	fbdefio->delay =           HZ / fps;
-	fbdefio->deferred_io =     fbtft_deferred_io;
-	fb_deferred_io_init(info);
+	fbdefio->delay =            HZ / fps;
+	fbdefio->sort_pagereflist = true;
+	fbdefio->deferred_io =      fbtft_deferred_io;
 
 	snprintf(info->fix.id, sizeof(info->fix.id), "%s", dev->driver->name);
 	info->fix.type =           FB_TYPE_PACKED_PIXELS;
@@ -666,6 +664,7 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
 	info->fix.line_length =    width * bpp / 8;
 	info->fix.accel =          FB_ACCEL_NONE;
 	info->fix.smem_len =       vmem_size;
+	fb_deferred_io_init(info);
 
 	info->var.rotate =         pdata->rotate;
 	info->var.xres =           width;
@@ -1034,10 +1033,9 @@ int fbtft_init_display(struct fbtft_par *par)
 			for (j = 0; par->init_sequence[i + 1 + j] >= 0; j++)
 				;
 
-			fbtft_par_dbg(DEBUG_INIT_DISPLAY, par,
-				      "init: write(0x%02X) %*ph\n",
-				      par->init_sequence[i], j,
-				      &par->init_sequence[i + 1]);
+			fbtft_par_dbg_hex(DEBUG_INIT_DISPLAY, par, par->info->device,
+					  s16, &par->init_sequence[i + 1], j,
+					  "init: write(0x%02X)", par->init_sequence[i]);
 
 			/* Write */
 			j = 0;